Canon 5D2, Rikenon 55mm/1.4. 1/400s, f/1.4, ISO 100.
I recently bought a batch of vintage M42 screw-mount lenses. They won't mount directly to a Canon, of course, but that problem is easily solved with an adapter. I picked up an M42 to EOS adapter
from B&H, and it works great. The lenses are all manual focus with actual aperture rings.